Apparatus for transmitting sunlight to basements or other stories.



No, 668,404. Patented Feb. |9,f|9o|.

o. s. n. uAnNEBonG. ,APPAIMTUS FOR TRANSMITTING SUNLIGHT T0 BASEMENTS UR OTHER STORIES.

(Application filed Feb. 26, 1900.)

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UNITED STATES PATENT OFFICE.

ODTLON BALTZAR HANNIBAL I-IANNEBORG, OF OHRISTIANTA, NORWAY.

APPARATUS FOR TRANSMlTTlNG SUNLIGHT TO BASEMENTS 0R OTHER STORIES.

SEECIFICATION forming part of Letters Patent No. 668,404, dated February 19, 1901. Application ned reti-my 26, 1900. senti No. 6.637. (No model.)

To all whom it may concern:

Be it known that T, ODILON BALTZAR HAN- NIEAL I-IANNEBORG, a citizen of the Kingdom of Norway, residing at Ohristiania, Norway, have made certain new and useful Improvem en ts in Apparatus f or Transmittin g Sunlight to the Basement or other Stories in Houses, of which the following is a speciiication.

The object of my invention is to collect the rays from the sun or other sources and to convey them to the cellar or other rooms in build-h ings, where they may be utilized in the form of light or transformed into heat or decomposed by prisms in diierent colors and utilized for different purposes.

The apparatus can of course, besides being used in buildings, also be used in mines, forts, vessels, and in general in such places Where direct light cannot otherwise reach.

The invention is illustrated in the accompanying drawing7 wherein the iigure shows a building where the light-collector is placed on top oi' the roof and connected by a vertical light-conveyer to the cellar, where a lightdistributer is placed for lighting this room.

The light-collector, as shown by the figure, consists of a mirror a, pivoted at b in the fork c, which on its axis d can be turned in the solid bearing e. The mirror u, will, when properly set against the sun or other light-producers, reilect the rays to the funnel-shaped collector f, which on its inside is bright like a mirror and provided with another funnel of glass g, which funnel g helps to throw the rei'lected rays down the funnel f to the vertical light-conductor h, which also is bright like a mirror. At the lower extremity is placed a a globe of milk-glass if, into which the rays reach and by which they are spread in the cellar. Considerable light is also reflected by the mirrors a directly and vertically down the tube j and eonveyer h, as shown by the arrows Aon the drawing. The mirror 0L must of course, if the light from the sun is to be used, be moved in accordance with the sun either by watch mechanism or by hand, such as shown by the figure, where the cords 7a' k2 are connected in such a manner to the mirror ct and the fork c that the mirror can be held at any angle in relation to the source of light, and so that the rays will reflect vertically down the funnel-shaped light-collector f. For this purpose the mirror is provided with a weight at a, and the 'axis d is acted on by a spring in order that the axis, by means of -the spring and the cords k2, may be turned in` both directions. If the cords k' 7a2 are operated by a watch mechanism adjusted in accordance with the movement of the sun, the described arrangement may very well be used for transmission of sunlight.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- In combination, the conductor h, the funnel-shaped mirror forming a continuation thereof, a second `funnel-shaped mirror within said first-nained mirror, and a plain mirror adj u stably mounted above said funnel-shaped mirrors, substantially as described.

In witness whereof I have hereunto set my hand in presence o two witnesses.

ODTLON BALTZAR HANNIBAL IIANNEBORG.

Witnesses AXEL LAI-1N, HENRY BoEDEwIcH. 

